<template>
  <div>
    <!-- 顶部滑动条区域 -->
    <div id="slider" class="mui-slider">
      <div id="sliderSegmentedControl" class="mui-scroll-wrapper mui-slider-indicator mui-segmented-control mui-segmented-control-inverted">
        <div class="mui-scroll">
          <a :class="['mui-control-item', item.id == 0 ? 'mui-active' : '']"
            v-for="item in cates"
            :key="item.id"
            @tap="getPhotoListByCateId(item.id)"
          >{{ item.title }}</a>
        </div>
      </div>
    </div>
    <!-- 图片列表区域 -->
    <ul class="photo-list">
      <router-link v-for="item in list" :key="item.id" :to="'/home/photoinfo/' + item.id" tag="li">
        <img v-lazy="item.img_url">
        <div class="info">
          <h1 class="info-title">{{ item.title }}</h1>
          <div class="info-body">{{ item.zhaiyao }}</div>
        </div>
      </router-link>
    </ul>
  </div>
</template>

<script>
//导入mui js文件
import mui from '../../lib/mui/js/mui.min.js'

export default {
    data() {
        return {
            cates: [{id:0, title:"全部"}],
            list: []
        }
    },
    mounted() {
        mui('.mui-scroll-wrapper').scroll({
            deceleration: 0.0005 //flick 减速系数，系数越大，滚动速度越慢，滚动距离越小，默认值0.0006
        })
    },
    created() {
        this.getAllCategory();
        this.getPhotoListByCateId(0);
    },
    methods: {
        getAllCategory(){
            this.$http.get('api/getimgcategory').then(result=>{
                if(result.body.status === 0){
                    this.cates = this.cates.concat(result.body.message)
                }else{
                    this.$toast('获取分类失败:'+result.body.message)
                }
            })
        },
        getPhotoListByCateId(id){
            this.$http.get('api/getimages/'+id).then(result=>{
                if(result.body.status === 0){
                    this.list = result.body.message
                }else{
                    this.$toast('获取分类失败:'+result.body.message)
                }
            })
        }
    },
};
</script>

<style lang="less" scoped>
* {
  touch-action: pan-y;
}
.photo-list{
    list-style: none;
    margin: 0;
    padding: 10px;
    padding-bottom: 0;
    li{
        background-color: #ccc;
        text-align: center;
        margin-bottom: 10px;
        box-shadow: 0 0 9px #999;
        position: relative;
        img{
            width: 100%;
            vertical-align: middle;
        }
        img[lazy="loading"] {
            width: 40px;
            height: 300px;
            margin: auto;
        }
        .info {
            color: white;
            text-align: left;
            position: absolute;
            bottom: 0;
            background-color: rgba(0, 0, 0, 0.4);
            max-height: 84px;
            .info-title {
                font-size: 14px;
            }
            .info-body {
                font-size: 13px;
            }
        }
    }
}
</style>